Binder tying and cutting device



C. E. EVANS.

BINDER'TYING AND CUTTING DEVICE.

APPLICATION FILED AUG-21,1919.

Patented May 17, 1921.

3 SHEETS-SHEET 1.

z m w m ad witness c. E. EVANS. BINDER TYING AND CUTTING DEVICE.

APPLICATION FILED AUG-21, 1919.

Patented May 17, 1921.-

3 SHEETS-SHEET 2.

C. E. EVANS. BINDER TYING AND CUTTING DEVICE. APPLICATION FILED AUG-21,1919.

1,378,169. P tentd May 17, 1921.

3 SHEETS-SHEET 3- I 'r lu'vemiioz wih/woo UNITED l STATES PATENT OFFICE.

CHARLES E. EVANS, OF SEATTLE, WASHINGTON.

BINDER TYING AND CUTTING DEVICE.

Original application filed January 11,

1,324,239 relates to improvements in binder tying devices and moreparticularly devices adapted to twist together and cut off the limbs ofa binder.

The principal object of the invention is to provide a simple andimproved'construction which is positive and dependable in action. Thevarious features of novelty and objects of the invention will beapparent from the description .taken in connection. with the drawings,in which- Figure 1 is a side elevation of a twister head equipped with atwister constructed in accordance with the present invention, the bindercarrier or needle being shown in its uppermost position for deliveringthe binder to the twisting device;

Fig. 2 is a vertical'sectional view through the twister taken on theplane of the binder entering slot;

Fig. 3 is a partial front elevation of the twister head, the bindercarrier being removed;

Fig. 4 is a top plan view of the binder cutting device and part of themeans for operating the same;

Fig. 5 is a side elevation of the parts shown in Fig. 4;

Fig. 6 is a bottom plan view of the fixed plate at the bottom of thetwister device which cooperates with the cutoff disk to hold the binder;

Fig. 7 is a cross sectional elevation through the binder cutoff andholding parts taken substantially on the line 7-7 of Fig. 4; and

Fig. 8 is a top plan view of the housing containing the cutoff wheel.

Referring to the drawings which illustrate the at present preferred formof the invention, the binder tying or twisting device comprises acentral core 6 having the radial slot adapted to receive the binder 25,the inner portion of said slot being slightly ec- SpecificationofLetters Patent. v Patented May 17, 1921.

1918, Serial No. 211,448 Divided and this application filed August 21,1919. Serial No. 319,008.

centric to the axis of the core. This core is mounted to turn freely ina bearing 12' secured to the frame member 12 of the machine, and thehearing has its outer part slotted in a vertical central plane to forman entrance channel for the binder, thus providing two cheeks 13 whichpreferably are rounded as shown in Fig. 3.

To the upper end of the-core 6 is secured I a pinion 61 which is formedwith a slot 61' corresponding to the slot 60 of the core and is operatedby a gear 7 provided with a smooth sector 7 0 devoid of teeth. The gear7 also carries a segment bar 71 positioned at a lower level than itsteeth. When the parts are at rest, the segment 71 engages one of theconcave recesses in a disk 62 which is connected to rotate with thetwister core and which also has a slot 63 for the passage of the binder.The gear 7 is coaxial with, and is connected to rotate with, a bevelgear 72, the latter being driven at suitable intervals in any desiredmanner.

The parts of the binder twister and out ting mechanism are shownseparately in Figs. 4, 5, 6 and 7, and assembled in Figs. 1 and 2. Asillustrated a plate 8 is secured to the bottom of the twister head byscrews 8 and is formed with the binder receiving slot 80 and a recess 81in its upper surface, said recess constituting a seat for the lower endof the rotative core 6. This plate holds the core against longitudinalmovement in one direction and the flange 6 holds it against movement inthe opposite direction. On its under side, as shown in Fig. 6, thisplate is provided with a binder receiving and clamping groove 82 andinserted wear plate 83 of hardened metal in which is formed a of thegroove 82.

The wire cutting wheel 84 is journaled on the bolt 87, the axis of whichis at one side of the axis of the twister parts that is, eccentricthereto. The wheel 84 has a series of recesses extending inwardly fromits periphery forming the teeth 84, the lower corners of the sides ofwhich form cutting members which coact with the edge 58 of the bottom ofthe casing 58, which may be of hardened steel to form a wire cuttingshears.

The finger 57 carried by the gear 101 engages a tooth 84 so that at eachrevolution of the gear 101, the cutting disk 84 is rotated through asmall angle. thus cutting the binder in the slot 80. The gear 101 ispart equal in size to its driving gear 102, which is secured to the sameshaft as the gears 7 and 72, so that gear 101 rotates at the sameangular velocity as gear 7.

The upper surface of the teeth 84 are formed with radial grooves asshown at 85 in Figs. 4 and 7, whereby the end of the binder remainingafter cutting is drawn into the groove 82 and held securely against thestrain of passing the binder about the next bundle, this position of theparts being illustrated in Fig. 7 To secure correct stopping and holdingof the cutting disk, each of the teeth 84' may be formed with aperipheral notch 88 which is engaged by the pointed spring held bolt 89.

The wire carrier or needle includes the vertical reciprocating rod orshaft 9 and this rod carries a head 91 to which is secured the bar 92having the bifurcated ends 93 between which are mounted the binderguiding rolls 94. The head 91 is adapted to be re'ciprocated verticallyby any suitable mechanism and is provided with a pin or pins 95 adaptedto enter holes in the cheeks 13 to insure proper registration with thetwister mechanism.

In the operation of the machine, one end of the binder being held by thetwister device, the head 91 moves downwardly, then thebundle movesagainst the binder and thereafter the head 91 moves upwardly in rearofthe bundle to the positionillustrated in Fig. 1. When the head 91reaches its upper position, it trips the rod 68 which controls theoperation of bevel gear 72. This gear 72 is rotated and suitablemechanism is provided so that it makes one rotation only and then stops.When the needle carrier head 91 moves to the osition illustrated in Fig.1, it disposes the binder in the grooves 80,60 and 63 shown in Fig. 2,so that one end of the binder is held by the grip between the cutofiwheel 84 and plate 8 and the other end is disposed in said slots bothends of the binder thus being slightly eccentric tothe axis of rotationof the twister. Consequently if the core and associated parts arerotated, the portions of the binder between the bundle and the lowerpart of the twister devices will be twisted together. Normally thesegment 71 ongear 7 by means of its engagement with the plate 62, holdsthe twister mechanism against rotation, so that the. slot 60 of the corewill be held in registration with the slot formed between the cheeks13..

ing the core of the twister, The rotation of the core 6 continues untilthe smooth or cutaway portion 71 of the gear 7 again comes opposite thepinion 61, thus holding the twister against rotation, the toothless portion of gear being opposite pinion 61, whereby the latter is not driven.The gear 101, however, rotates through a further slight angle, so thatthe projection 57 carried by the gear 101 operates the cutting disk 84to cut or sever the binder, this cutting taking place between the bottomedge of one of the teeth 84' and the edge of the In this mannerthe bider llmbs are twisted together, the binder is severed and an end thereofheld by the twister, so that a new length of binder may be disposedaround the bundle.

Although a specific form of the invention has been described in detail,it is to be understood that it is not thus limited, but ineludesmodifications and changes which come within the scope of the appendedclaims. I

Having thus described the invention what is claimed as new and desiredto be secured by Letters Patent is:

1. A twisting and binder cutting mechanism including in combination, abearing, a rotary core mounted in said bearing formed with alongitudinal radial slot for the binder the inner portion of which isslightly eccentric to the axis of said core, a flange on the coreengaging, the bearing to prevent axial movement in one direction, aplate secured to the core at one end and engaging an end of said bearingto prevent axial movement in the opposite direction, a'casing secured tosaid plate having a bottom spaced from the plate, a wheel cooperatingwith an edge of said bottom to cut the binder mounted in said casing forrotation about an axis eccentric to the core axis and a driving gearsecured to the core coaxial therewith.

2. A twisting and binder cutter mechanism including in combination, abearing, a rotary device mounted in said bearing formed with alongitudinal radial slot for the binder, the inner portion of which isslightly eccentric to the axis of said device and a combined bindercutting and gripping wheel mounted at one end of said device forrotation about an axis eccentric to the axis of the device, andcooperating with the device to grip and hold one end of the binder.

3. A twisting and binder cutting mechadism including in combination, abearing, a rotary core mounted in said bearing formed with alongitudinal radial slot for the binder, the inner portion of which isslightly eccentric to the axis of said core, a binder cutting wheelmounted at one end of said (ore for rotation about an axis eeeentrie tothe (ore axis, a easing for said wheel ha ring a bottom plate spacedfrom the eore, said wheel formed with teeth the lower edges of whichcooperate with an edge of said bottom to cut the binder and the uppersurtaees thereof cooperating with the (ore to grip and hold one end ofthe binder.

el. A bundle binding: and tying machine including in combination. arotary eore, a binder carrier movable to and from said eore, a bearingfor said core supporting the same with its axis at an angle to the pathof the carrier, said core formed with a lone-itndinal radial slot the'inn r portion of which is slightly eceentric to the axis of the core,said bearing formed with a slot regis tering: with the core slot whenthe core is in idle position, a casing secured to one end of the core. abinder cutter wheel in said easing rotatable about an axis offset fromthe core axis, and means including said wheel for erip 'iing one end ofthe binder.

In testimony whereof I a'flix my signature.

CHARLES E. EVANS.

